tube feet
lobopodia
cephalopodia
rhizopodia
D. rhizopodia
tube feet
lobopodia
cephalopodia
rhizopodia
Nervous system with a large brain
Respiratory system
System of internal seleton
Excretory system
Starfish
Jellyfish
Cuttlefish
Fresh water mussel
herbivorous
omnivorous
carnivorous
none of these
bipinnaria
glochidium
auralia
echinus
Sea stars
Cake urchins
Sea lilies
Sea cucumbers
coelenterates
marine arthropods
echinodermates
sponges
Sea cucumber
Brittle star
Feather star
Both (b) and (c)
torneria
onchosphere
trochophore
bipinnaria
Antedon
Echinocardium
Ophiothrix
Pentaceros
Asteroidea
Crinoidea
Ophiuroidea
Holothuroidea
coelenterates
polychaetes
echinodermates
hemichordates
Sea star
sea urchin
Sea cucumber
Feather star
Axial sinus
Dermal papillae
Tube feet
Tiedamann bodies
movable
immovable
prehensile
all of these
locomotion
respiration
feeding
all of these
sand dollar
sea cucumber
sea flies
sea horse
Snail
Slug
Nereis
Sea-urchin
sea-hares
sea-stars
devil fish
sea fans
pluteus
echinopluteus
bipinnaria
auricularia
echinodea
holothuroidea
asteroidea
ophiuroidea
Sea-star
Star fish
Sea-cucumber
Sea lily
Schizocoelic coelom
Water vascular system
Spines in the body mass
Marine habitat
Crinoidea
Asteroidea
Holothuroidea
Ophiuroidea
Star fish
Sea fan
Ship worm
None of these
Crinoidea
Asteroidea
Holothuroidea
Ophiuroidea
an exoskeleton
a spiny skin
bilateral symmetry
gastrovascular cavity
Holothuria (sea cucumber)
Echinus (sea urchin)
Echittocardium (sand dollar)
Antedon (feather star)
Sea cucumber
Sea lily
Sea urchin
Sea star
Sand dollar
Jelly fish
Silver fish
All of these